Internal-combustion engine



R. 0. HENDRICKSON.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED FEB. 9. I920. ,694, Patented Feb. 28,1922.

2 sIIEETssIIE'ET I.

R. 0. HENDRICKSON.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED FEB. 9, 2

1,407,694. I Patented Feb.28, 1922.

2 SHEETSSHEET 2.

Units STATES PATENT OFFICE.

corner 0; i-rnnnnionso v, or is-Acme, Wisconsin, assrenon r0 J. I. CASE PLOW WonKs'ccMrAnn-oii Rac ne, Wisconsin, A coaronarron or DELAWARE.

INTERNAL-CGMBUSTION ENGINE.

i Aeneas.

Specification of Letters Patent. Patented F 1 28 192? Application filed February 9, l920wSerialNo. 357,176.

To alt (07mm it may concern:

Be it known that I, Roi :u'r Gil-innumera- SON. a citizen of the United States, residing at Racine in the county of llacine and State of Wisconsin, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the followingis a saecification.

My invention relates more particularly to means for automatically maintaining a fixed speed-of the motor or, to be more precise for limiting the fluctuation of speed of the motor by controlling the supply of explosive mixture to the engine from or by the water circulation. its the rapidity of circulation is proportional to the speed of the engine, by controlling the supply of combustible gases to the engine from the water circulation the engine speed may be maintained constant within narrow limits. My present invention consists in a construction and arrang ment of parts whereby the throttle valve forthe explosive mixture is sensitively controlled from the circulation of water in the jacket of the engine and which at the same time permits the normal position of the throttle valve to be adjusted at the pleasure of the operator. In the accompanying drawings 1 have shown a preferred form of invention but it is to be understood that the specific disclosure is for the purpose of exemplifies.- tion only and that the scopeo'f the invention is defined in the following claims in which I have endeavoredto distinguish it.

from the prior art so far as known toyme without however relinquishing or abandonirany portion or feature thereoi.

1 the accompanying drawings Fig. 1 is a partially diagrammatic plan view of an engine to which my invention has been applied. partly in section on a horizontal plane through the water jacket and cylinders of the engine; Fig. 2 is a front elevationon an enlarged scale of a detaihjparts'being shown in section on the line 2-2 of Fig; 8; Fig. ills a horizontal section of the same detail on the line 3-3 of Fig. 2; Fig. l is a horizontal section on an enlarged scale of a detail and Fig. 5 is a vertical section showing the throttle valve. I

Each part is identified by the same reference character wherever it appears in the several views.

Looking first to Fig. 1 the engine is shown as ol' :1 common form, except in the respects main. casting 6,

the engine may be of any usual or approved character/As heretoforestated the throttle valve ll is controlled by the circulation in the water jacket of the engine and for this purpose. the water jacket is formed with a circular opening lfi at its front end which opening is closed by. a flexible diaphragm 17,.the edges of which are clamped in position by the annulus 18 of a conical hollow casting which is truncated and terminates in a split annulus l9. Said annulus is adapted to receive a bearing forthe shaft 2() of a fan 2L driven by a pulley 22, the bearing being secured rigidly in the annulus l9 1;; being clamped therein by means of a clamping bolt 23. i

A. leverQ is pivoted at 25 to a fin or bracket 26 extending inwardly from the wall ofthe conical portion of the casting and said casting is diametrically slottedat The intake 11 for the co1nbusti- 2?. 28 to permit the free movement'otthe lever which ex ends throughthe slots at i opposite ends. Adjacent its fulcrunithe legcr ispivoted at 29 between posts for ned on the dished circular plate 31 which is secured to the diaphragm 17 by means o 1': .a bolt extended through a boss, 33 on d plate, the diaphragm and a washer 34:, p d bolt being headed 0n the inside as at 35 and 'irovided with a nut 30011 the outside] to clamp the parts together. The lever is connected by a link 3'7with an arm 38 formed on the trunnion of the butterfly valve. The other end of the lever is connected to a handle l0 which may be set in adjusted position by ineans oi": a pawl-41 and are rack -12. The connection between the lever 24 and handle +10 is resilient comprising a rod L23 connected to said lever and a rod a l connected to the handle, said rod 43 having thereon an adjustable collar l5 and said rod is connected to a collar 46 which is slidingly mounted upon rod L3. Collars 45 and 4-6 are connected by a coiled tension spring elT. Obviously with this construction oi the diaphragm and directed toward the relatively narrow passage between the diaphragm and the adjacent cylinder, and the dia ihragni being normally somewhat distended inwardly forms with the cylinder a converging passage through which the water from the inlet is forced. By reason of this construction and arrangement the diaphraga is peculiarly sensitive to fluctuations in the speed of flow of the water and therefore quickly responds to changes in the speed of the engine and withany increase oi speed shifts the throttle valve to decrease the flow oi. combustible gases to the engine cylinder. On the other hand when for any reason the speed of the engine dininishes the pressure on the diaphragm decreases and itmoves inward by reason of the spring l? to a position to more fully open the throttle valve.

I claim:' i

1. In a device of the class described an internal combustion engine having a water jacket, there being an openin in the wall of the acket, a diaphragm closing the opening, a connection arranged to directthe flow oi water substantially along the face of the diaphragm and between the same and the engine cylinder, a valve controlling the supply of combustible mixture to the engine, andconnections from the diaphragm to the valve for controlling the latter.

2. In a device of the class described an internal combustion engine having a water jacket, said water jacket having an opening in the front wall thereof, a flexible diaphragm closing the opening, a lever pivoted transversely in front of and adjacent the diaphragm, a pivoted connection between said lever and diaphragm, a conduit for supplying combustible mixture to the engine, a valve-in said conduit, and a connection from said lever to said valve. V

8. In a device of the class described an internal combustion engine having a water jacket, there being an opening in thet'ront walls of the water jacket, a flexible dia phragm closing said. opening, a lever pivoted to extend transversely of the engine cylins der adjacent the diaphragm, a'conduit for supplying combustible mixture .to the engine, a valve in said conduit, a connection from the valve to one end of said lever for operating the valve, an ad ustable handle and a connection "including a spring from the other end of said lever to said handle.

a. In a device of the class described an internal combustion engine, having a water jacket thereon there being an opening in the wall of the water jacket, a diaphragm c1osing said opening, a support having a flange between which and the edge of the opening in the water jacket the'diaphragmis secured, a valve controlling the'supply of combustihlemi'xture to the engine, a connection from the diaphragm to said valve, a fan journaled in said support and means for rotating the fan. i V

5. In a device of the class described, a combustion engine having a water jacket thereon, there being an opening in the front wall of the water jacket, a diaphragm closing said opening,'a lever pivoted intermediate its ends to the diaphragm and to a liked support, an adjustable handle, a spring connection from said adjustable handle to said lever, a valve controlling the admission of combustible gas to the engine cylinders, a connection irom sa1d valve to said lever, a

support having a flange between which and the water acket of the engme said diaphragm is clamped, said support being slotted for the passage of the lever, a fan journaled onsaid support and means for r0: tating the fan. i

6. In a device'of the class described a coin bustion engine having a water jacket thereon, there being an opening in the wall of the water jacket, a diaphragm closing said opening, a valve controlling the supply of com- I bustible mixture to the engine, connections from the diaphragm to the valve for controlling the latter, a water inlet so formed and located as to directthe incoming stream of Water substantially parallel to the diaphragm and between the same and the cylinderq T". In a device of the classdescribed a combustlon engine comprising a cylinder and a water acket surroundmg the same, there being an opening in the wall of the water jacket adjacent the cylinder, a diaphragm secured over said opening the diaphragm and cylinder formmg a contracting passage,

an inlet to the water jacket directed toward said passage a valve controlling a supply of-combustible mixtureto theengine and connections between said valve and diaphragm such that when the diaphragm is forced outwardly it moves the valve toward closed position.

. ROBERT o. HENDRIcKsoN. 

